He was a highly skilled tactician, among the most skilled in the TSC.
The Sergeant was a soldier, through and through, and was unable to relax, even during a celebration.
Hawk died just as the Commander was about to give his/her speech at Rivet City when the West Coast chapter of the Brotherhood of Steel launched their gunship into the market district having him and Kurosawa being caught the blast.
He was armed with an XM-586 Assault Rifle.
It is revealed that he had a wife and child, during his funeral with the others who died during the commanders speech, a woman and boy with the last name Hawk can be seen at the funeral.